baber/WOPTO huggingface dataset:
Patent KR-960013657-B1 (KR)
Title: Door vision system using vcr
Inventor: CHON BYUNG-HOO
IPC: H04N7/18
Filed: 1992-10-31
Granted: 1996-10-10
Abstract: an input signal selecting switch(5) switching a first broadcasting signal input, a second external signal input and a third signal input selectively; a video signal processing circuit(9) processing the signal transmitted from switch(5); a monitor means connected to the output of the video signal processing circuit(9); an OSD circuit(7) which provides a specific character signal, being connected between the switch(5) and the video signal processing circuit(9); a mode selection switch(12) having a display mode selecting position and a check mode selecting position; and a control means(20) providing a control signal for controlling to drive the OSD circuit(7) and controlling the input signal selecting switch(5) to receive the third signal input.
Patent KR-960013736-B1 (KR)
Title: Image display apparatus of projector type
Inventor: KIM MYUNG-JIN
IPC: H04N5/74
Filed: 1992-10-31
Granted: 1996-10-10
Abstract: a light source(1) emitting a white light; a optical beam separating means(5) separating the white source into several light beams of different colors; a optical path controlling means(7) controlling the optical path by reflecting the light beams into different paths; a beam intensity controlling means(9) controlling the intensity of each light beam; a scanning mirror(13) line-scanning by collecting each light beam; and lenses(15,17) projecting the line scanned color light beam into a screen.
Patent KR-100194656-B1 (KR)
Title: 반도체 장치 제조방법
Filed: 1992-11-06
Granted: 1999-06-15
Abstract: 부분적으로 단차가 있는 기판 상에 형성된 반도체 소자들 위에 층간 절연막을 적층하는 공정과, 기판으로부터 높이 방향으로 두꺼운 막질 상부가 드러나기 전까지 폴리싱하여 평탄화시키는 공정과, 상기 부분적으로 단차가 있는 형상의 높은 단차 부분에 포토레지스트층을 패턴 형성하고 드러난 상기 층간 절연층을 식각하여 제거하므로써 부분적으로 단차가 있은 기판 표면에 따라 평탄화된 층간 절연층을 형성하여 평타화 및 미세 단차를 없애도록 한 것을 특징으로 하는 반도체 장치 제조방법.
Patent KR-960011639-B1 (KR)
Title: Formation of shallow-junction using titanium silicide
Inventor: KIM SANG-YOUNG
IPC: H01L21/47
Filed: 1992-12-31
Granted: 1996-08-24
Abstract: An upper region of silicon substrate consists of a field oxide film, a gate oxide film, a gate electrode, and a spacer oxide film. The method comprises the steps of: using a multiple crystallization(6) as a diffusion source to form a shallow junction, evaporating titanium on the polysilicon(6), etching a silicide in hydrogen fluoride fluid after the reaction of multiple crystallization(6) and titanium(9).
Patent KR-100274417-B1 (KR)
Inventor: GOKUBO YUJI
IPC: H04N5/3722
Filed: 1993-02-16
Granted: 2000-12-15
Abstract: 본 발명의 목적은 릴리스의 조작타이밍에 대한 실행로광기간의 지연에 의해 셔터찬스를 놓칠우려나, 셔터단차에 의한 화질열화를 경감한 고체촬상장치를 제공하는 것이다. 
     본 발명의 구성은 프레임 인터라인 트랜스퍼형의 고체이미지센서(1)의 구동회로(6)의 동작을 제어부(7)에 의해 제어하고, 광전변환소자에 의해 얻어진 촬상전하를 수직블랭킹기간중의 소거타이밍에서 전하소거부에 버려서, 이 소거타이밍으로 부터 필요한 로광기간경과후에 광변환소자에 얻어진 촬상전하를 수직전송 레지스터에 전송하여 다음의 수직 블랭킹기간중에 촬상부로 부터 축적부에 고속전송하여, 촬상기간중에 수평전송 레지스터를 통하여 선순차로 독출한다.
Patent KR-950005545-B1 (KR)
Title: Mode exchange apparatus for cassette tape recorder
Inventor: LEE DU-HON
IPC: G11B15/10
Filed: 1993-03-31
Granted: 1995-05-25
Abstract: a cam gear having inner and outer cams on its upper part and inner and outer cams on its lower part, and rotating by selectively receiving the rotation power of a pinch gear rotating with a main gear; a shifting plate movably installed in a main plate, and operating a mode converting switch according to the selected mode simultaneously shifting left and right when an operation lever rotates along the path of the inner lower cam in case of the rotation cam gear; a switching device installed in a main plate, and operating a switch according to the selected mode simultaneously with rotating by receiving the rotation power of the rotating solenoid lever according to the operation of the solenoid.
Patent KR-960007177-B1 (KR)
Title: Process for the preparation of arts using waste paper
Inventor: JUNG SUNG-JA
IPC: B44C3/04
Filed: 1993-04-13
Granted: 1996-05-29
Abstract: (a) putting torn and washed waste paper into the first vessel; (b) making a paste by mixing 20 liter of water, 300 gram of salt, and 500 gram of wheat flour and heating for 15-20 minutes in the second vessel; (c) kneading the waste paper by mixing the paste for 20-30 minutes; (d) pounding for 30-60 minutes with adition of sawdust whose amount is about 3/10 times the paper amount; (e) shaping and drying the prepared paper dough in a mold; (f) covering a paste made of an aromatic tree powder on it; (g) maintaining the shape with a rope or stone while drying; and (h) painting the product with a white color water paint.
Patent KR-970005480-B1 (KR)
Title: Process for polystyrene resin grafted with polyethylene glycol,polypropylene glycol or polyethylene-propylene glycol
Inventor: LEE YUN-SIK
IPC: C08F257/00
Filed: 1993-04-13
Granted: 1997-04-16
Abstract: Title resin useful for organic synthetic reaction such as peptide synthesis was prepared by the following steps: swelling a polystyrene having hydroxy group on .beta. position of benzene ring in dioxane or tetrahydrofuran; mixing it with reaction-promoting base such as NaOH, KOH, KH, or Na/naphthalenide; by reacting the mixture with ethylene oxide, propylene oxide and a mixed solution of ethylene oxide/propylene oxide at 80-120 deg.C for 4-10 hours; and washing the obtained polystyrene with water and methanol, followed by drying to give the modified title resin.
Patent KR-100250589-B1 (KR)
Inventor: DE KEYZER GERARDUS C M
IPC: G02F1/13
Filed: 1993-05-11
Granted: 2000-04-01
Abstract: 아크릴 수지를 포함하는 상부 코팅층(10, 15)은 인쇄 기술에 의해 기판(1)상에 제공된다. 개시 물질의 여러 혼합을(이 작용성, 삼 작용성 및 사 작용성 아크릴레이트와 가능한 첨가제)은 상술되었다. 그 결과 생성된 상부 코팅층은 경화되고, 그의 엣지에 경사부를 가진다.
Patent KR-960005501-B1 (KR)
Title: Spray gun with dual mode trigger
Inventor: GRIME THOMAS E
IPC: B05B15/00
Filed: 1993-05-21
Granted: 1996-04-25
Abstract: A hand held spray gun (10) which reduces operator fatigue and stress. The gun handle (14) has an ergonomically designed shape and the size of the handle may be changed using different size handle covers (25). The gun (10) has a plurality of triggers (31, 42, 44, 45) operated by different fingers (50, 51) when the gun is held in different orientations to reduce fatigue and operating frequency stress on an operator's fingers. Some triggers operate low force valves which supply pilot air to a pilot valve which opens the fluid and air valves. Paint and air hoses (38, 40) may be attached to alternate locations on the gun (10) to reduce hand and wrist fatigue when painting vertical or horizontal surfaces. A junction box (99, 100) may be included to allow the connection of lighter weight hoses (38, 40) to the gun and may include an optional trigger valve (110) to remotely trigger the fluid and air valves in the gun. <IMAGE>
Patent KR-950015147-B1 (KR)
Title: Liquid gas underground reserration for having a bombing break
Inventor: HAN JONG-TAI
IPC: F17C13/12
Filed: 1993-06-03
Granted: 1995-12-22
Abstract: The explosion-proof reservoir for LPG to be embedded in the underground, comprises a submerged motor pump(300) discharging the water in the vertical gangway, a water discharge tube(330), a power cable(310), a enclosing lid(220) having an air inlet(221), an LPG discharge pipe(510) and a compressor(500) for discharging the gas heavier than the air.
Patent KR-950010626-B1 (KR)
Title: Data output device
Inventor: LEE JAE-JIN
IPC: G11C11/407
Filed: 1993-07-23
Granted: 1995-09-20
Abstract: a data detecting circuit for detecting data to be outputted; and first and second transistors in which pull-up drivers of data output buffers for inputting the output data from the data detecting circuit have gates controlled by different signals, only one transistor in the first and second transistors operates if multibit output data read are the same, while both transistors operate if the multibit output data are different from each other.
Patent KR-960008107-B1 (KR)
Title: Color monitor
Inventor: JANG JAE-HO
IPC: H01J29/30
Filed: 1993-08-30
Granted: 1996-06-19
Abstract: The color monitor is for applying the hexagonal configuration of the shadow mask and the phosphor dot on the fluorescent screen in order to the same pitch track as well as to increase the transmission area of the light through the dot, to maintain high resolution and to enhance the luminance.
Patent KR-100303701-B1 (KR)
Title: 역행n웰캐소드쇼트키트랜지스터및이를제조하는방법
IPC: H01L21/331
Filed: 1993-09-21
Granted: 2001-11-22
Abstract: 바이폴라 트랜지스터 구조(7) 및 쇼트키 다이오드 구조(8)를 포함하는 개선된 쇼트키 트랜지스터 구조(6)는 쇼트키 다이오드 구조용 기판으로서 국부화된 역행 다이오드웰(9)을 형성하도록 비교적 빠르게 확산하는 원자를 역행 확산시킴으로써 형성된다. 비교적 느리게 확산하는 원자로 형성된 확장된 매몰 콜렉터층(11)은 역행 다이오드웰(9) 및 바이폴라 트랜지스터 구조(7)의 베이스 콜렉터 영역하부에 놓인다. 다이오드 접합부(10)은 상기 역행 다이오드웰 표면을 포함하도록 바이폴라 트랜지스터 구조의 베이스 접점을 확장시킴으로써 형성된다. 바람직하게는, 상기 다이오드 접합이 플래티늄-실리사이드 접합이다. 개선된 쇼트키 트랜지스터 구조는 바이폴라 접합 트랜지스터 제조공정 또는 BICMOS 집적회로 제조공정의 일부로서 형성될 수 있는데, 이 경우에 매몰된 다이오드층은 바이폴라 트랜지스터 구조의 매몰된 콜렉터층과 동시에 형성될 수 있으며 역행 다이오드웰은 바이폴라 트랜지스터 구조의 서브-에미터 콜렉터 영역과 동시에 형성될 수 있다. 매몰된 콜렉터층 한정 마스크는 또한 매몰된 다이오드층 한정 마스크이며, 서브-에미터 콜렉터 영역 한정 마스크는 또한 역행 다이오드웰 한정 마스크이고, 바이폴라 접점 한정 마스크는 또한 다이오드 접합 접점 한정 마스크이다.
Patent KR-960001316-B1 (KR)
Title: Plug for cable tube
Inventor: LEE SI-YONG
IPC: H02G9/06
Filed: 1993-11-08
Granted: 1996-01-25
Abstract: a circular type of water expanding rubber expanded by absorbing water; a circular disk of first plate member attachably inserted into the both side ends of the water expanding rubber; a second plate member having a connection hooker attached on the both ends thereof; a pipe hole stopper frame divided into two partitions and being comprised of a coupling device for coupling the first and second plate members; a supporting member mounted within a receiving pipe passage on which a cable is laid, for preventing the water from being penetrated; a locking pin mounted on the side surface of the second plate member, for preventing a pipe hole stopper from sliding; and a supporting projection locked to the outer end portion of a pipe passage.
Patent KR-960005654-B1 (KR)
Title: Drive exchanging apparatus for fdd
Inventor: KIM KYUNG-HOON
IPC: G11B19/02
Filed: 1993-12-16
Granted: 1996-04-30
Abstract: The apparatus simply switches the floppy disk drives during the operation of the computer system when the user has to change the order among a backup drive, a 5.25 inch floppy disk drive or a 3,5 inch floppy disk drive and to selectively use just one drive among them. The apparatus comprises a power management unit(11) making the output signal high or low in order to minimize the consumption of the power, a multiplexer(15) connected to signal terminals for the selection of the drive among the signals from a floppy disk controller(13), a connector(17) connecting the output signal generated from the multiplexer(15) to one of the floppy disk drives(3,5). If the output signal from the power management(11) is low, the multiplexor(15) transmits the A drive specified signal from the floppy disk controller(13) to the 1st floppy disk drive(3). Otherwise, the multiplexer(15) transmits the B drive signal to the 2nd drive(5).
Patent KR-950011808-B1 (KR)
Title: Continuous shade character printing method in dot matrix printer
Inventor: LEE HAE-BOM
IPC: G06K15/10
Filed: 1993-12-18
Granted: 1995-10-10
Abstract: The method comprises the steps of initializing a character interval counter and a shadow data register in response to a reception of a shadow character code; assigning the address of an output buffer by a value of a compensation register; checking a column position by comparing a value of the letter interval counter with a preset column value; when the value of the existing character interval counter is larger than the preset value, printing the shadow data stored in the shadow data register and character data inputted from the outside, and shifting the shadow data stored in the shadow data register; and if the value of the present character interval counter is smaller than the preset value, storing the value in the compensating register after subtracting the value of the character inverter counter from the preset column value.
Patent KR-0132856-B1 (KR)
Title: Capacitor of semiconductor & manufacturing method thereof
Inventor: KIM KYUNG-HOON
IPC: H01L27/108
Filed: 1993-12-22
Granted: 1998-04-16
Abstract: A capacitor of the semiconductor and a manufacturing method for the said capacitor whereby the storage electrode consists of a pin style part that has several conductive layers and expandes into conductive layers, a conductive circumference part that apart from the pin style part and encloses with the pin style part. It is possible to take the capacitance for the high integrated memory cell without increasing the edge, because of using the top, bottom and side wall of pin style part and out side and inner side of conductive circumference part as the validity capacitor area.
Patent KR-960013269-B1 (KR)
Title: Full - electronic - exchanger
Inventor: YE BYUNG-HO
IPC: H04M3/22
Filed: 1993-12-22
Granted: 1996-10-02
Abstract: The apparatus includes a workstation interacting with memory units and an operation & maintenance processor through a SCSI bus. The method comprises the steps of: classifying signal source of an input information; transmitting information generated within the system to the workstation after completing the first step and waiting; analyzing a necessity of data integration for a number of data processing; and transmitting the processed result in case of the request of integrated information or integration request signal in the need of integration and waiting the result.
Patent KR-960009191-B1 (KR)
Title: Method for manufacturing a hot-dipped zinc coating steel sheets with an excellent corrosion resistance and plating adhesion
Inventor: SHIN JUNG-CHOL
IPC: C23C2/00
Filed: 1993-12-27
Granted: 1996-07-16
Abstract: The method includes the processes of spraying of fine aluminum powder of the particle size of under 5 Pm on the surface of galvanized steel sheet just before the solidification of molten zinc, applying the powder in the quantity of 100 to 1,000mg/m2 on the surface of the plating layer, heat-treating at 400 to 600deg.C. The produced sheet is used for automobile, electric home appliances, building materials and structures.
Patent KR-100278245-B1 (KR)
Title: 실리콘 감압성 접착제용 오가노하이드로젠실록산 가교결합제
IPC: C09J183/04
Filed: 1993-12-29
Granted: 2001-01-15
Abstract: 실옥산 수지 ; 분자내에 불포화 그룹을 포함하는 폴리디오르가노실옥산 중합체 ; 사이클릭 또는 직쇄형 오르가노하이드로젠폴리실옥산과 탄소수 6 내지 28의 α-알켄과 일반식 Ph-R 4 (여기서, Ph는 페닐 래디칼이고, R 4 는 탄소수 2 내지 6의 말단-불포화 1가 탄화수소 그룹이다)의 방향족 화합물 중에서 선택된 불포화 유기화합물의 반응 생성물인 수소화규소-작용성 가교결합제 ; 및 하이드로실릴화 촉매를 기본으로 하는 실리콘 압력-민감성 접착제 조성물에 대해 기술하였다.
Patent KR-100249709-B1 (KR)
Title: Oligosaccharide derived from an antigenic polyosaccharide from a pathogenic agent
Inventor: MOREAU MONIQUE
IPC: A61P31/04
Filed: 1992-10-09
Granted: 2000-03-15
Abstract: An oligoside derived from an antigen polyoside obtained from a pathogenic agent, a method for its preparation, and its use particularly as a vaccinal agent. The oligoside is prepared by oxidation-reduction depolymerisation reaction.
Patent RO-120263-B1 (RO)
Title: Composition for treating the contact surfaces of tyre and inner tube wall
Inventor: TIGAU LAURENTIU DANIEL
IPC: C08L5/00
Filed: 2000-09-28
Abstract: The invention relates to a composition with viscoelastic properties, with minimal plastic viscosity, which, when introduced between the tyre and the inner tube wall, forms a lubricant film therebetween, leading to the decrease of thermal and mechanical stress resulting from the friction on porous portions, the inner tube explosion hazard there being diminished thereby. According to the invention, the composition comprises 10...80% by weight water; 10...80% by weight glycol, selected from ethylene-glycol and propylene-glycol; 5...30% by weight glycerin; 0.1...5% by weight tyxotropic agent, selected from scleroglucan-based biopolymer, Xanthane gum-based biopolymer, cellulose ethers, such as carboxymethylcellulose, hydroxyethylcellulose; 0.4...8% by weight modified starch; 0.2...10% by weight a lubricant selected from sorbitan ethoxylated ester mixtures, vegetable or siliconic oil mixtures; 0.2...6% by weight thermal stabilizers of polysaccharide polymer systems as oxidation-proof agent mixtures, selected from sodium sulphite, sodium thiosulphate, thiourea, butyl-hydroxytoluene or mixtures thereof, buffer material, antibacterial agents, selected from sodium benzoate, sodium tetrametaborate and co-diamine-diacetate or mixtures thereof and corrosion-proof agents, selected from morpholine and phosphonic acid neutralized to phosphonate.
Patent RO-121780-B1 (RO)
Title: Cloth for the ventilation, heating and air-conditioning conduits of helicopters and process for finishing the same
Inventor: MIHAI CARMEN
IPC: D03D25/00
Filed: 2005-07-29
Abstract: The invention relates to a cloth for manufacturing ventilation, heating and air-conditioning installation conduits of military helicopters and to a process for finishing the same. According to the invention, the cloth comprises polyethylene-terephthalamide yarns of the same nature, both in warp and in weft, with a length density of 22 tex/134 fx1/250Z in warp and 22 tex/134 fx1/150 Z in weft. According to the invention, the process consists in subjecting the woven structure to a chemical treatment by applying a colloidal solution of a modified silicone acid containing 26% dry substance, through an impregnating-squeezing operation, at a squeezing ratio of 60% followed by drying at a temperature of 110...150A C.
Patent RS-54422-B1 (RS)
Inventor: BARRERE STÉPHANIE
IPC: C07K14/47
Filed: 2011-11-17
Abstract: Peptid koji se sastoji od:- fragmenta od 16, 17, 18, 19, 20, 21, 22, 23 ili 24 uzastopna amino kiselinska ostatka od DAXX proteina od SEQ ID BR: 1, gde pomenuti fragment obuhvata sekvencu amino kiseline iznetu u SEQ ID BR: 5, gde je pomenuti peptid sposoban da inhibira ćelijski apoptozis.Prijava sadrži još 16 patentnih zahteva.
Patent SA-110310693-B1 (SA)
Inventor: GRAHAM GOODWIN
Filed: 2010-09-18
Abstract: تركيبة محسنة improved composition مناسبة لتشكيل طلاء شبه شفاف translucent coating فوق سطح مادة إنشائية construction material surface مشتمل على الأقل على : أ- جسيمات محفزة ضوئياً من ثاني أكسيد التيتانيوم photocatalytic titanium dioxide particles متضمنة على فعالية إزالة NOx ؛ ب- مادة مكونة أساساً من السيليكون silicon based-material والتي فيها الجسيمات المذكورة تتشتت ، حيث أن المادة المكـونة أساساً من السيليكون silicon المذكـورة تتضمن متعـدد سيلوكسان polysiloxane واحد على الأقل ؛ و ج- جسيمات particles متضمنة على فعالية لإزالة de-HNO3 مختارة من كربونات الكالسيوم calcium carbonate ، كربونات الماغنسيوم magnesium carbonate و مخاليط مشتقة منها mixtures thereof.
Patent SA-113340354-B1 (SA)
Title: Batch charger with removable head for submerged charging
Inventor: GREGOIRE VILLEROY DE GALHAU
Filed: 2013-03-04
Abstract: The invention relates to a batch charger for charging batch materials into a glass melting furnace at a level located below the level of the molten glass, comprising: - a body with a barrel (1) and a mechanical system (2) for conveying batch materials, said system being housed in said barrel; - a head removably fastened to the end of the barrel, with a slide gate damper (3), and a tubular connecting part (4) fastened to the slide gate damper and intended to be at least partially inserted into the charging orifice provided in the wall of the tank of the furnace, the slide gate damper (3) and the connecting part (4) comprising a system of internal ducts (5) that can be connected to a source of coolant. The invention also relates to a melting installation and process using such a batch charger. Figure 1
Patent SA-515360394-B1 (SA)
Title: Catalyst for the oxychlorination of ethylene to 1, 2-dichloroethane
Inventor: TOMPERS ROLF
Filed: 2015-05-06
Abstract: This invention relates to a catalyst containing from about 2 up to about 8 % by wt. of copper, zero up to about 0.6 moles/kg of one or more alkali metal(s), from about 0.08 up about 0.85 moles/kg of one or more alkaline earth metals and from about 0.09 up to about 0.9 moles/kg of one or more transition metals selected from the group consisting of Mn, Re and mixtures thereof, where all the metals are impregnated in form of their chlorides or other water soluble salts on a fluidizable support with a BET surface area of from about 80 up to about 220 m2/g. A process for the oxychlorination of ethylene to form 1,2-dichloroethane using such a catalyst having good activity, good selectivity and low tendency to stickiness in fluidized bed oxychlorination reactions.
Patent SA-516371632-B1 (SA)
Title: Electromagnetic formation evaluation tool apparatus and method
Inventor: GOODMAN GEORGE DAVID
Filed: 2016-08-09
Abstract: Apparatus and methods are described, such as for obtaining information ‎indicative of a formation resistivity using an electromagnetic formation ‎evaluation tool apparatus (100). For example, the electromagnetic formation ‎evaluation tool apparatus (100) includes exciter electrodes (101, 102 ) ‎configured to transmit and receive a formation current (140). A first exciter ‎electrode may be insulated from a conductive apparatus housing (230) and a ‎second exciter electrode may be coupled to the conductive apparatus housing ‎‎(230). Monitor electrodes (105, 106 ) may be insulated from the conductive ‎apparatus housing (230). A receiver circuit (120) may be coupled to the ‎monitor electrodes and configured to measure a voltage differential between ‎the monitor electrodes (105, 106 ). A power amplifier circuit may be coupled to ‎the first exciter electrode and the conductive apparatus housing (230) and ‎configured to generate the formation current (140) wherein the conductive ‎apparatus ho
Patent SA-516371645-B1 (SA)
Title: An x-ray device
Inventor: HU QIU-HONG
Filed: 2016-08-09
Abstract: Example embodiments presented herein are directed towards an x-ray generating device. The device comprises at least one electron emitter(s) (22, 22_1, 22_2, 22_3) which has an electrically conductive substrate (23). The electrically conductive substrate comprises a coating of nanostructures (24). The device further comprises a heating element (21) attachable to each electrically conductive substrate. The device further comprises an electron receiving component (14) configured to receiving electrons emitted from the at least one electron emitter(s). The device also comprises an evacuated enclosure (10) configured to house the at least one electron emitter(s), the heating element and the electron receiving component. The at least one electron emitter(s) is configured for Schottky emission when the heating element is in an on-state and the at least one electron emitter(s) is negatively biased. (FIG. 2)
Patent SA-516380552-B1 (SA)
Title: Methods and Systems for Estimating Sizes and Effects of Wellbore Obstructions
Inventor: Sami Abdulaziz ALNUAIM
Filed: 2016-12-20
Abstract: Methods and systems to estimate physical dimensions of actual obstructions identified as being in a wellbore of an injection well are provided. Methods and systems include the determination of a well performance model with a simulated obstruction, using inflow performance and outflow performance relationships. FIG. 1
Patent SA-516380633-B1 (SA)
Title: Process for the Production of Para-Xylene
Inventor: ANDREWS JEFFREY
Filed: 2016-12-29
Abstract: In a process for producing para-xylene, a feed stream comprising C6+ aromatic hydrocarbons is separated into a C7- aromatic hydrocarbon-containing stream, a C8 aromatic hydrocarbon-containing stream, and a C9+ aromatic hydrocarbon-containing stream. The C7- aromatic hydrocarbon-containing stream is contacted with a methylating agent to convert toluene to xylenes and produce a methylated effluent stream. Ethylbenzene is removed from the C8 aromatic hydrocarbon-containing stream, para-xylene is recovered from the ethylbenzene-depleted C8 aromatic hydrocarbon-containing stream and the methylated effluent stream in a para-xylene recovery section to produce a para-xylene depleted stream, which is then contacted with a xylene isomerization catalyst under liquid phase conditions effective to isomerize xylenes in the para-xylene depleted stream and produce an isomerized stream. The C9+-containing stream with a transalkylation catalyst under conditions effective to convert C9+-aromatics